Ydwen Efreet [Arabian Nights] Tiefling Shaman When Rattlechains enters the battlefield

When Rattlechains enters the battlefield

Set: Commander Masters Type: Instant Rarity: Rare Cost: {3}{U}{U} Return all creatures to their owners' hands

Set: Doctor Who Type: Plane — The Library Rarity: Common Players have no maximum hand size

Set: Zendikar Rising Prerelease Promos Type: Creature — Ooze Rarity: Rare Cost: {2}{G} When Oran-Rief Ooze enters the battlefield

but they fled long ago

Ydwen Efreet [Arabian Nights] Tiefling Shaman When Rattlechains enters the battlefieldSet: Arabian Nights Type: Creature Efreet Rarity: Rare Cost: {R}{R}{R} Whenever Ydwen Efreet blocks, flip a coin. If you lose the flip, remove Ydwen Efreet from combat and it can't block this turn. Creatures it was blocking that had become blocked by only Ydwen Efreet this combat become unblocked.